复用后cell重叠

我想问一下您是怎么解决 cell 复用以后，不再调用 sizeForItemAtIndexPath 这个方法，导致的cell之间会彼此覆盖的问题的呢？我使用您的左对齐waterfalllayout的时候同样出现了复用后覆盖的问题，但是您的demo中就没有这个问题

Reproduce the reported overlap with the left-aligned waterfall layout after cell reuse, comparing the behavior with the repository demo. Trace whether sizeForItemAtIndexPath is invoked in the failing case; done means the reuse behavior is explained and the overlap is resolved or a precise reproduction is documented.

Scritto dal modello di indicizzazione a partire dal testo della issue.